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    REVERSE FLOW CATCH-AND-RELEASE TOOL AND METHOD
    1.
    发明申请
    REVERSE FLOW CATCH-AND-RELEASE TOOL AND METHOD 审中-公开
    反向流动捕获和释放工具和方法

    公开(公告)号：US20170058637A1

    公开(公告)日：2017-03-02

    申请号：US15192371

    申请日：2016-06-24

    Applicant: GEODynamics, Inc.

    Inventor： Dennis E. Roessler ,  Varun Garg ,  John T. Hardesty ,  Kevin R. George ,  Raymond C. Shaffer ,  Philip M. Snider ,  David S. Wesson

    IPC: E21B34/10 ,  E21B43/26

    CPC classification number: E21B34/14 ,  E21B2034/007

    Abstract: A catch-and-release tool conveyed with a well casing for use in a wellbore comprising an outer housing having flow ports therethrough, a functioning apparatus disposed within the outer housing comprising a movable member/sleeve and a holding device, and a blocking apparatus comprising a blocking member configured to block the flow ports in a first position. When a ball deployed into the well casing passes through the tool in a downstream direction and moves back in an upstream direction, the restriction element engages onto the holding device and moves the movable member such that a port in exposed to up hole pressure and the blocking member travels to a second position in a reverse direction unblocking flow ports and enabling fluid communication to the wellbore. The ball is thereafter released in an upstream direction.

    Abstract translation: 一种用于井筒的井口释放工具，其用于井眼，其包括具有穿过其中的流动孔的外壳体，设置在外壳内的功能装置，包括可动构件/套筒和保持装置，以及阻塞装置， 阻挡构件构造成在第一位置阻挡流动端口。 当展开到井套管中的球沿下游方向穿过工具并沿上游方向移动时，限制元件接合到保持装置上并移动可移动构件，使得暴露于上部孔压力的端口和阻塞 构件沿相反方向行进到第二位置，从而解除阻塞流动端口并使得能够与井眼进行流体连通。 球随后在上游方向释放。

    WIPER PLUG SEAL INTEGRITY SYSTEM AND METHOD
    2.
    发明申请
    WIPER PLUG SEAL INTEGRITY SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20180142528A1

    公开(公告)日：2018-05-24

    申请号：US15814234

    申请日：2017-11-15

    Applicant: GEODynamics, Inc.

    Inventor： Kevin R. George ,  Raymond C. Shaffer

    IPC: E21B33/05 ,  E21B33/16

    CPC classification number: E21B33/05 ,  E21B21/10 ,  E21B33/16

    Abstract: An efficient wiper plug seal integrity system and method for deviated/horizontal wellbore is disclosed. The system/method includes a wellbore casing installed into a wellbore along with restriction elements, a secondary engagement sub, a float collar and a shoe. A wiper plug is deployed into the wellbore casing after cement slurry is pumped into the wellbore casing. The secondary engagement sub provides a tapered entry guide directly above the float collar. The entry guide has a reduced inside diameter that serves to enhance the sealing integrity of the wiper plug and also aligns the wiper plug to properly latch into a locked position. In another system, a stepped diameter wiper plug with a reduced nose is disclosed. The reduced nose provides for an improved seal integrity that fits and latches into a smaller internal diameter secondary engagement sub.

    REVERSE FLOW SEAT FORMING APPARATUS AND METHOD
    5.
    发明申请
    REVERSE FLOW SEAT FORMING APPARATUS AND METHOD 审中-公开
    反向流动座椅形成装置和方法

    公开(公告)号：US20170058639A1

    公开(公告)日：2017-03-02

    申请号：US15192421

    申请日：2016-06-24

    Applicant: GEODynamics, Inc.

    Inventor： John T. Hardesty ,  Raymond C. Shaffer ,  Dennis E. Roessler ,  Varun Garg ,  Kevin R. George ,  Philip M. Snider ,  David S. Wesson

    IPC: E21B34/10 ,  E21B43/26 ,  E21B43/14 ,  E21B33/12

    CPC classification number: E21B34/14 ,  E21B2034/007

    Abstract: A seat forming apparatus for use in a downhole tool comprising a driving member and a seating restriction is disclosed. The driving member and the seating restriction are mechanically disposed within an outer housing of the downhole tool. When the driving member drives into the seating restriction, the seating restriction or the driving member bend or buckle inwards to form a seat in the downhole tool. The inner diameter of the seat is configured to allow a restriction element to be seated in the seat.

    Abstract translation: 公开了一种用于井下工具的座椅形成装置，其包括驱动构件和座椅限制件。 驱动构件和座椅限制器机械地设置在井下工具的外壳内。 当驱动构件驱动到座椅限制件中时，座椅限制件或驱动构件向内弯曲或弯曲以在井下工具中形成座椅。 座椅的内径被构造成允许限制元件就座在座椅中。

    Reverse flow catch-and-release tool and method
    6.
    发明授权
    Reverse flow catch-and-release tool and method 有权

    公开(公告)号：US10294752B2

    公开(公告)日：2019-05-21

    申请号：US15192371

    申请日：2016-06-24

    Applicant: GEODynamics, Inc.

    Inventor： Dennis E. Roessler ,  Varun Garg ,  John T. Hardesty ,  Kevin R. George ,  Raymond C. Shaffer ,  Philip M. Snider ,  David S. Wesson

    IPC: E21B34/14 ,  E21B34/00

    Abstract: A catch-and-release tool conveyed with a well casing for use in a wellbore comprising an outer housing having flow ports therethrough, a functioning apparatus disposed within the outer housing comprising a movable member/sleeve and a holding device, and a blocking apparatus comprising a blocking member configured to block the flow ports in a first position. When a ball deployed into the well casing passes through the tool in a downstream direction and moves back in an upstream direction, the restriction element engages onto the holding device and moves the movable member such that a port is exposed to up hold pressure and the blocking member travels to a second position in a reverse direction unblocking flow ports and enabling fluid communication to the wellbore. The ball is thereafter released in an upstream direction.

    Hydraulic delay toe valve system and method
    8.
    发明授权
    Hydraulic delay toe valve system and method 有权

    公开(公告)号：US10138709B2

    公开(公告)日：2018-11-27

    申请号：US14841135

    申请日：2015-08-31

    Applicant: GEODynamics, Inc.

    Inventor： Raymond C. Shaffer ,  John T. Hardesty

    IPC: E21B34/10 ,  E21B43/116 ,  E21B37/00 ,  E21B34/06 ,  E21B34/00

    Abstract: An apparatus and method for providing a time delay in injection of pressured fluid into a geologic formation. In one aspect the invention is a toe valve activated by fluid pressure that opens ports after a predetermined time interval to allow fluid to pass from a well casing to a formation. The controlled time delay enables casing integrity testing before fluid is passed through the ports. This time delay also allows multiple valves to be used in the same well casing and provide a focused jetting action to better penetrate a concrete casing lining.

    Reverse flow catch-and-engage tool and method
    10.
    发明授权
    Reverse flow catch-and-engage tool and method 有权

    公开(公告)号：US09617826B2

    公开(公告)日：2017-04-11

    申请号：US15200677

    申请日：2016-07-01

    Applicant: GEODynamics, Inc.

    Inventor： Dennis E. Roessler ,  Kevin R. George ,  Varun Garg ,  John T. Hardesty ,  Raymond C. Shaffer ,  Philip M. Snider ,  David S. Wesson

    IPC: E21B34/14 ,  E21B43/26 ,  E21B34/06 ,  E21B34/00

    CPC classification number: E21B34/14 ,  E21B43/14 ,  E21B43/26 ,  E21B2034/007

    Abstract: A catch-and-engage tool conveyed with a well casing for use in a wellbore comprising an outer housing having flow ports therethrough, a functioning apparatus disposed within the outer housing comprising a movable member/sleeve and a holding device, a blocking apparatus disposed within the outer housing comprising a blocking member configured to block one or more flow ports in a first position, a seating apparatus positioned upstream of the blocking apparatus configured to form a seat in the tool. When a ball deployed into the well casing passes through the tool in a downstream direction and moves back in an upstream direction, the restriction element engages onto the holding device and moves the movable member such that a port in exposed to uphole pressure and the blocking member travels to a second position in a reverse direction unblocking flow ports and enabling fluid communication to the wellbore.

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